Technically Speaking
For me, the better R/R might be waiting for the latter level to be tested, but it may never get there, that is the risk you run by waiting.
Note, if you are a buyer at these levels, determine where you will get out. If you hold until the next support level, that could be painful.
Fundamentals
If you are not familiar with what they do, here is a link to their website: https://www.dollartree.com/
One of the best lessons I have learned is the ability to cut losses quickly. This definition will be d/f for everybody, but experience has taught me, that limiting losses is the surest way to success. It is just so hard to pull your way out of deep drawdowns. Enough preaching. Have a good day.